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|Other Titles:||A Flat Tax for Taiwan: Simulations and Proposal|
Lin, Su-Ming;Chen, Kuo-Tay;Wang, Chuan-San;Chao, Nien-Chyi
Flat tax;Iincome tax system;Tax simulation;Tax reform.
|Issue Date:||2016-05-31 16:54:28 (UTC+8)|
The flat tax system taxes all types of income with the same tax rate to achieve simplicity, efficiency, and fairness. Although the traditional progressive tax system is based on the ability-to-pay principle, the ever-expanding tax preferences, however, have eroded the tax base, compromised tax equity, and complicated the tax system. Under the assumption of preserving 2002 tax revenue, this study develops a tax simulation model to determine the impact of adopting a flat tax system in Taiwan. We find when a 15% flat rate is applied to both business and individual income, 43.5% of business income taxpayers will pay less tax, while only 7% will have more tax burden. As to individual income taxpayers, 35% are better off with less tax payments provided that personal exemption was increased to NT$220,000 and an additional special deduction of NT$74,000 for those who are disabled or handicapped. On the other hand, 36% of the individual income taxpayers are worse off with more tax exposure due to the elimination of deductions. Moreover, every 1% increase of the flat tax rate will increase total income tax revenue by NT$24 billion. This facilitates simulations of a long-term optimal flat rate. Our results suggest the government should evaluate the adoption of a flat tax system to simplify the tax system and to promote tax equity, before the tax incentives provided in the Statute for Upgrading Industries expire at the end of 2009.
International Journal of Accounting Studies
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